Advanced

Configuration Methods
You can pass a configuration options object when initializing Aspecto in code, like this for example:
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require('@aspecto/opentelemetry')({
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    packageName: 'my-package',
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    env: 'production',
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    samplingRatio: 0.1
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});
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Or add configuration file named aspecto.json near your package.json with the same options as above:
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{
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    packageName: 'my-package',
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    env: 'production',
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    samplingRatio: 0.1
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}
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Or use various environment variables, for example:
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export ASPECTO_PACKAGE_NAME=my-package
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Values are evaluated in the following priority:
1.options object
2.environment variables
3.config file
4.default values
Configuration Options

Available install configurations (all are optional):
Option
Type
Description
Default
disableAspecto
boolean
disable aspecto
false (aspecto enabled)
env
string
Set environment name manually
process.env.NODE_ENV
aspectoAuth
UUID
Set Aspecto token from code instead of using aspecto.json
​
packageName
string
set packageName manually instead of reading it from package.json. For example: a service that runs in multiple "modes"
"name" in package.json
packageVersion
string
set packageVersion manually instead of reading it from package.json
"version" in package.json
local
boolean
When set to true, enable live traces​
false
liveExporterPort
number
Specify port for live traces​
random
logger
logger interface
Logger to be used in this tracing library. common use for debugging logger: console
​
samplingRatio
number
How many of the traces starting in this service should be sampled. set to number in range [0.0, 1.0] where 0.0 is no sampling, and 1.0 is sample all. Specific rules set via aspecto app takes precedence |
1.0
writeSystemLogs
boolean
If true, emit all log messages from Opentelemetry SDK to supplied logger if present, or to console if missing
false
customZipkinEndpoint
URL
Send all traces to additional Zipkin server for debug
​
collectPayloads
boolean
Should instrumentation collect payloads of operations
true
Advanced Settings
Exporting Format
Data collected by the SDK is sent to Aspecto's collector in protobuf format by default. 
An alternative is to send the data in JSON format, which uses less CPU for encoding the message but is more verbose - causing more data to be sent over the network. 
To export data over JSON instead of protobuf, set the environment variable  ASPECTO_TRACE_EXPORT_JSON to any value.
Disabling Aspecto
Set the environment variable DISABLE_ASPECTO to any value, to disable Aspecto.
Affect lambda and GCF wrappers as well.
Useful when running unit tests, or as a simple kill switch.

Live Trace
Live trace allows you to capture traces from all the microservices that you're running locally (both on the host env and docker) withlocalmode enabled. To activate live trace mode use local option like so:
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require('@aspecto/opentelemetry')({ local: true });
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 Once the process starts it will output the following link:
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=====================================================================================================================================
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|                                                                                                                                   |
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| 🕵️‍♀️See the live tracing stream at https://app.aspecto.io/app/live-traces/sessions?instanceId=14243e72-14dc-4255-87af-ef846b247578   |
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|                                                                                                                                   |
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=====================================================================================================================================
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Click on the link to open the Live Trace, to see traces from all the microservices that are running on your environment that have local mode enabled. The link is valid for a limited period of time (a couple of days, but it may change in the future). 
If you don't see a trace from some microservice (or none of them), click the newly-generated link.
​

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Last modified 18d ago

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Contents

Configuration Methods

Configuration Options

Advanced Settings

Configuration Methods

Configuration Options

Advanced Settings

Exporting Format

Disabling Aspecto

Live Trace

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